Working through a pen testing lab, was getting access denied when trying to capture.
Tried running sudo and it doesn't let you cause it's a security risk.
But when we're in a pen test lab, i'm ok with that risk.
But I was still getting this error "no protocol specified"
> sudo wireshark
No protocol specified
No protocol specified
(wireshark:3962): Gtk-WARNING **: cannot open display: :0.0
The fix I found
> export XAUTHORITY=/home/mooreted/.Xauthority
> sudo wireshark
